/* codes returned by the origin() efun */                          
#define ORIGIN_BACKEND       "driver" /* backwards compat */           
#define ORIGIN_DRIVER        "driver"                            
#define ORIGIN_LOCAL         "local"                                   
#define ORIGIN_CALL_OTHER    "call_other"                         
#define ORIGIN_SIMUL_EFUN    "simul"                             
#define ORIGIN_CALL_OUT      "call_out"                             
#define ORIGIN_EFUN          "efun"                     
/* pseudo frames for call_other function pointers and efun pointer */   
#define ORIGIN_FUNCTION_POINTER   "function_pointer"         
/* anonymous functions */  
#define ORIGIN_FUNCTIONAL         "functional"  

